times=16
print(times+1) #17
val=0xff
print(val) #255
price=20.8
print(20.8*2) #41.6
lightSpeed=3e5 #300000km
print(lightSpeed*10) #3000000
oneNm=1e-9
print(oneNm*5) #5e-09
isExpensive=price<30
print(isExpensive)#True
